Testing Custom DSLs

Custom DSLs can be used in Test Spring Boot applications and tested via @SpringBootTest, but spring-funk-test provides a test fixture that facilitates faster tests which can share a test class. To use it, use the testDslApplication function. This function takes a list of initializers to run. Pass your initializer you want to test in here.

Example

testDslApplication(CustomDsl()) {
    
}

The second argument is a DSL entry point. Within this DSL, you can use application {} to use your DSL and other DSLs. environment {} allows you to set environment properties. test {} allows you to access the resulting ApplicationContext. Your assertions should go there.

Full Example

testDslApplication(CustomDsl()) {
    application {
        customDsl {
        }
    }
    environment {
        setProperty("prefix.property", "value")
    }
    test {
        assertThat(getBean<MyBean>().customProp).isEqualTo("value")
    }
}

Initializer Dependencies

TODO